I also just realized something:
When doing the hard reset last night I didn't get an error message, but when I was just upgrading one of the apps and after rebooting my device, it said
'The back-up file might be corrupt.'

However, the BB is still working smoothly and I can't detect any problems (aside of the ones mentioned in this thread, of course.)

So two questions:
1) Is it possible for me to pin-point what exactly is corrupt? Because
2) If I back-up now wouldn't it be backing up a possibly corrupt file? So if I wipe it and reload the back-up, I might get that error again, right?